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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"
/*
static char MTestDescrip[] = "Test freeing keyvals while still attached to \
a communicator, then make sure that the keyval delete and copy code are still \
executed";
*/
/* Function prototypes to keep compilers happy */
int copy_fn(MPI_Comm oldcomm, int keyval, void *extra_state,
void *attribute_val_in, void *attribute_val_out, int *flag);
int delete_fn(MPI_Comm comm, int keyval, void *attribute_val, void *extra_state);
/* Copy increments the attribute value */
int copy_fn(MPI_Comm oldcomm, int keyval, void *extra_state,
void *attribute_val_in, void *attribute_val_out, int *flag)
{
/* Copy the address of the attribute */
*(void **) attribute_val_out = attribute_val_in;
/* Change the value */
*(int *) attribute_val_in = *(int *) attribute_val_in + 1;
/* set flag to 1 to tell comm dup to insert this attribute
* into the new communicator */
*flag = 1;
return MPI_SUCCESS;
}
/* Delete decrements the attribute value */
int delete_fn(MPI_Comm comm, int keyval, void *attribute_val, void *extra_state)
{
*(int *) attribute_val = *(int *) attribute_val - 1;
return MPI_SUCCESS;
}
int main(int argc, char *argv[])
{
int errs = 0;
int attrval;
int i, key[32], keyval, saveKeyval;
MPI_Comm comm, dupcomm;
MTest_Init(&argc, &argv);
while (MTestGetIntracomm(&comm, 1)) {
if (comm == MPI_COMM_NULL)
continue;
MPI_Comm_create_keyval(copy_fn, delete_fn, &keyval, (void *) 0);
saveKeyval = keyval; /* in case we need to free explicitly */
attrval = 1;
MPI_Comm_set_attr(comm, keyval, (void *) &attrval);
/* See MPI-1, 5.7.1. Freeing the keyval does not remove it if it
* is in use in an attribute */
MPI_Comm_free_keyval(&keyval);
/* We create some dummy keyvals here in case the same keyval
* is reused */
for (i = 0; i < 32; i++) {
MPI_Comm_create_keyval(MPI_NULL_COPY_FN, MPI_NULL_DELETE_FN, &key[i], (void *) 0);
}
MPI_Comm_dup(comm, &dupcomm);
/* Check that the attribute was copied */
if (attrval != 2) {
errs++;
printf("Attribute not incremented when comm dup'ed (%s)\n", MTestGetIntracommName());
}
MPI_Comm_free(&dupcomm);
if (attrval != 1) {
errs++;
printf("Attribute not decremented when dupcomm %s freed\n", MTestGetIntracommName());
}
/* Check that the attribute was freed in the dupcomm */
if (comm != MPI_COMM_WORLD && comm != MPI_COMM_SELF) {
MPI_Comm_free(&comm);
/* Check that the original attribute was freed */
if (attrval != 0) {
errs++;
printf("Attribute not decremented when comm %s freed\n", MTestGetIntracommName());
}
} else {
/* Explicitly delete the attributes from world and self */
MPI_Comm_delete_attr(comm, saveKeyval);
}
/* Free those other keyvals */
for (i = 0; i < 32; i++) {
MPI_Comm_free_keyval(&key[i]);
}
}
MTest_Finalize(errs);
/* The attributes on comm self and world were deleted by finalize
* (see separate test) */
return MTestReturnValue(errs);
}
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